Diagnostic lamp.



R. H. WAPPLER.

DIAGNOSTIC LAMP. APPLIOATION rILBD AUG. 21. 1913.

Patented Feb. 24, 1914.

a sectional side view of duced into socket 18 VUNITED STATES OFFICE.

BEINHOLD H. WAPPLER, OF NEW YORK, N. Y., ASSIGNOR TO AMERICAN CYSTSCOPE MAKERS, INC., 0F NEW YORK, N. Y.

DIAGNOSTIC LAMP.

Patented Feb. 24,1914. Serial No4 785.351.

To all whom 'it may concern:

Be it known that I, REINHOLD H. VVAI- PLER, a citizen of the United States, residing at New York city, county and State of New York, have invented a new and Improved Diagnostic Lamp, oi which the following is a specification.

This invention relates to a novel electric lamp for diagnostic be examined.

the organs to The lamp is more particularly designed to be used in conjunction with a direct vision ophthalmoscope of novel cfnstruction, and embraces other novel features more fully brought out. in the specification and appended claims.

In the accompanying drawing: Figure 1 is a longitudinal section through my novel diagnostic lamp showing the ophthalmoseope in position; Fig. 2 a rear View of the ophthalmoscope and view of the lamp, showing the parts in a. dii"- ferent position, and Fig. 5 a plan of Fig. 4. My improved lamp comprises essentiall y a cylindrical metallic easing 10 that constitutes a handle. Casing 1() is closed at its ends by screw caps 11, 12 and is shown to contain a pai'.- of dry cells 13, a cylindrical insulator 14 being preferably interposed between the casing and cells. Cells 13 are held in contact with each other by a spring l5 that simultaneously serves for connecting the lower pole ot.' the lower cell with a` cap 11 and consequently with casing 10. Into a tubular extension ot cap 12 is tapped an insulating tube 1G, into whicfh is, in turn, tightly fitted a metallic plug 17, the latter being in contact with the upper pole of the upper cell 13. Plug 1,7 is provided with an axial socket. 18 and with a. transverse bore 19 oi like dian'ieter, bore 1S) also extending through tube 16. Into either socket 13 or bore 19 is adapted to be inserted the stem 2O of a hollow conductive rod or light holder 21. The latter is in turn firmly set into one end of a. coupling 22, into the other end olt which is fitted the stem 20 by means o'l an intervening insulating tube 23. Irrespcctive as to whether stem 20 has been introor bore 19, the stem may be fixed in position by one and the same clamp screw 24. Into the free end of rod purposes which may be readily adapted to the peculiar location ot' i part of the holder; Fig. 3 i Fig. 2; Fig. 4 a side f 21 is tapped the socket 2J. oi an electric light.- bulb 26.. One pole of said, lamp is in direct Iconductive connection with socket 25 and i consequently with rod 21 and coupling 22, while its other pole is, by wire 27, connected to stem 20. (,)n couplino' is rotatably mounted a ring 2S provided with :i Contact'V spring 29, the tree end ot' which is normally spaced from cap If it is desired tolight bulb 2G. handle l0 is grasped preferably by means ot' an insulating cylindrical `grip 30 l siu'rounding said handle, and spring 29 is then pressed against cap 12. In this way a I' circuit is closed, the current flowing from i cells 13 through plug 17, ,l bulb 26, socket holder 21, coupling 22,

sleeve 28, spring 2S), 11. and spring 15 to cells 1,3.

Holder 21 is adapted to be telescoped by a l tubel or sleeve 31 which is partially split as secured to holder 21 by Tube 31 is closed at its top as at 34 and is provided with a rear oblong aperture 35 through which the light may be emitted from bulb 2G I at 32 and may be ,'3. 'lube 3l carries a block 36 l l clamp screw 33.

ay pair of spaced plates 37, 38 is secured, the I plate 3S being provided with a shield 39. Plate 38 is further provided with a. circular observation opening 40 the center of which 31 as clearly shown in Fig. 2. Intermediate plates 3T, 3S, there are accommodated a l pair of disks 41, 42 which are rotatably sel cured to plate 37 by screw 43. Disk 41 is Il provided with one or more yisual apertures i 44 which may be brought into axial alinement with opening 40 by means of a pin 45 i extending forwardly from said disk. The i lat-ter is accommodated within a forwardly l projecting rim of disk 42, said disk having a plurality of apertures that are provided l with magnifying lenses 4G of different focus, ,fand may be successively brought opposite i opening 40 by grasping the rim of disk 42. l The number of the lens temporarily alined with opening 40 may be ascertained by an j indcx 47 which is adapted to be exposed through a. corresponding opening 4S or disk I 41 and through a slot 49 of plate 37.

It will be seen that upon pressing cont-act I 29 against cap 12, and bringing the ophthalmoscope within the proper position, the opstem 20, wire 27,'

cap 12, casing 10, cap

as illustrated in Fig.' to which;

approximately coincides with the top of tubel erator may unobstructedly View the eye of a 26 through aperture 35.`

It is obvious that the apparatus may also be used for inspecting certain inner Aparts ot the human body, such as the interior 0f the ear, mouth, etc., for which purpose screw 33 is loosened and tube 3l together with the parts carried thereby, is removed from holder 21. lf the location of the organ to oe examined so requires, holder 2l may be Withdrawn from socket 18' after loosening screw 24 and may be inscrtedinto bore 19,

so that its axis extends at right angles to that of handle l() as clearly illust-rated in L1- and' .3j Tn order to prevent an accidental contact between spring 2,9 and cap 1Q during shipment. etc., the insulating sleeve 30 the outer diameter of which exceeds that of the cap, is shifted up against the latter, as shown by dotted lines in Fig. l.

I claim:

l. A diagnostic lamp comprisinga holder, -an incandescent bulb carried thereby, means for supplyingelcctric current to Isaid bulb, a sleeve removably lltted on said holder and having a lateral a )erture near the 'free end thereof, said apcriure being adapted to be brought into alinement with the bulb, and a disk carried by the sleeve and having an opening the center of which is located in substantial alinement- With the apertured end of the sleeve.

2. A diagnostic lamp comprising a hol' low conduct ive handle, a cell inclosed therein and having one of its poles connected to wald handle, an insulated plug' carried bythe handle and having.;- an axial socket and-a transverse bore, said plug being conductively connected to the other pole of the cell, a

holder adapted to be fitted either into the socket or into the bore, an incandescent bulb carried by the holder, means for connecting one pole of said bulb to the plug, means for` connecting the other pole of the bulb to the holder, and a contact on the holder that is adapted to be brought into conductive engagement with the casing.

REINHOLD H. TAPPLER Vitnesses:

ARTHUR E. ZUMrE, FRIEDA ELMAN. 

